Our customer requested these light brown painted button socket screws in batches of approximately 2,500 pcs of both the security screw version and the standard button socket version.  Pin-in button socket drive was used for the security screw and both parts measured 6-32 X 5/16.  Alloy steel with thermal black oxide was used for the base part material, and the security screws had a wax coating that required stripping prior to the paint application.  Painting the screws without this stripping process would result in a good looking part until you actually tried to use them, at which point the paint easily chips and peels off the surface.  Unfortunately it’s often difficult to discern whether the part has this wax coating or not, requiring a sample test run to be sure.